Inspection Procedure

HINT:

Read freeze frame data using Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction (See DTC CHECK/CLEAR  ).

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0101) 
   1. Connect Techstream to the DLC3.
   2. Turn the ignition switch to ON.
   3. Turn the tester on.
   4. Enter the following menus: Powertrain/Engine/Trouble Codes.

      Result 

      DTC OUTPUT RESULT
      
      

      Display (DTC Output)	Proceed to
      P0101 and other DTCs	A
      P0101	B

   5. Read the DTCs.

      HINT:

      If any DTCs other than P0101 are output, troubleshoot those DTCs first.

      B: REPLACE MASS AIR FLOW METER 

      A: GO TO DTC CHART